SepaSperm Washing Solution is used for preparation and washing of sperm for use in assisted reproduction procedures. SepaSperm Washing Solution is not intended for use in intrauterine insemination procedures. SepaSperm Solution is used for separation of motile sperm from seminal fluid for use in assisted reproduction procedures.
Device Story
SepaSperm system comprises two sterile-filtered solutions: SepaSperm Solution (density-gradient media) and SepaSperm Washing Solution. SepaSperm Solution, containing silica particles, dextran, and polyvinylpyrrolidone in HEPES-buffered m-HTF medium, facilitates separation of motile sperm from seminal fluid via density-gradient centrifugation. SepaSperm Washing Solution, lacking silica, is used for washing and suspending the final sperm pellet. Used in clinical laboratory settings by embryologists or trained technicians. Output is processed sperm sample for use in assisted reproduction. Benefits include effective isolation of motile sperm for downstream procedures.
Clinical Evidence
Bench testing only. Performance validated via shelf-life testing (appearance, specific gravity, pH, osmolality, endotoxin, HSSA, sterility), sterile filtration/aseptic fill validation (ISO 13408), transportation testing (ASTM D4169), and container seal strength (USP 671). Sperm assessment (motility, morphology, viability, purity, integrity) confirmed effectiveness across separation modes.
Technological Characteristics
Media components: silica particles, HEPES-buffered salt solution, D-glucose, water, dextran, polyvinylpyrrolidone; optional gentamicin. Density-gradient separation principle. Form factor: 50mL/100mL bottles. Sterilization: sterile filtration and gamma irradiation of containers. Shelf-life: 6-12 months. pH 7.2-7.6; osmolality 270-300 mOsm/kg; endotoxin ≤0.25 EU/mL. Standards: USP <791>, <785>, <85>, <71>, <671>; ISO 13408-1/2; ASTM D4169-16.
Indications for Use
Indicated for use in assisted reproduction procedures for the preparation, washing, and separation of motile sperm from seminal fluid. Not indicated for intrauterine insemination procedures.
Regulatory Classification
Identification
Reproductive media and supplement are products that are used for assisted reproduction procedures. Media include liquid and powder versions of various substances that come in direct physical contact with human gametes or embryos (including water, acid solutions used to treat gametes or embryos, rinsing solutions, sperm separation media, supplements, or oil used to cover the media) for the purposes of preparation, maintenance, transfer or storage. Supplements are specific reagents added to media to enhance specific properties of the media (e.g., proteins, sera, antibiotics, etc.).
Special Controls
*Classification.* Class II (special controls) (mouse embryo assay information, endotoxin testing, sterilization validation, design specifications, labeling requirements, biocompatibility testing, and clinical testing). The device, when it is phosphate-buffered saline used for washing, and short-term handling and manipulation of gametes and embryos; culture oil used as an overlay for culture media containing gametes and embryos; and water for assisted reproduction applications, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 884.9.
Predicate Devices
Sydney IVF Sperm Medium, Sydney IVF Sperm Gradient Kit, Sydney IVF Spermient (K152782)
Submission Summary (Full Text)
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September 26, 2019
Kitazato Corporation % Audrey Swearingen Regulatory Affairs Manager Emergo Global Consulting, LLC 2500 Bee Cave Road, Building 1, Suite 300 Austin, TX 78746
Re: K190199
Trade/Device Name: SepaSperm Washing Solution, SepaSperm Solution Regulation Number: 21 CFR 884.6180 Regulation Name: Reproductive media and supplements Regulatory Class: II Product Code: MQL Dated: August 26, 2019 Received: August 27, 2019
Dear Audrey Swearingen:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
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Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
For Sharon M. Andrews Assistant Director DHT3B: Division of Reproductive. Gynecology and Urology Devices OHT3: Office of GastroRenal, ObGyn, General Hospital and Urology Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known) K190199
Device Name
SepaSperm Washing Solution, SepaSperm Solution
Indications for Use (Describe)
SepaSperm Washing Solution is used for preparation and washing of sperm for use in assisted reprocedures. SepaSperm Washing Solution is not intended for use in intrauterine insemination procedures.
SepaSperm Solution is used for separation of motile sperm from seminal fluid for use in assisted reproduction procedures.
| Type of Use (Select one or both, as applicable) | |
|--------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------|
| <div> <span> <span style="font-size: 16px;">☑</span> Prescription Use (Part 21 CFR 801 Subpart D) </span> </div> | <div> <span> <span style="font-size: 16px;">☐</span> Over-The-Counter Use (21 CFR 801 Subpart C) </span> </div> |
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# 510(k) Summary - K190199
#### 1. Submitter Information
| Applicant: | Kitazato Corporation |
|------------|------------------------------------------------------------|
| Contact: | Mr. Futoshi Inoue<br>President and Representative Director |
| Address: | 81 Nakajima, Fuji-shi<br>Shizuoka 416-0907<br>Japan |
### 2. Correspondent Information
| Contact: | Audrey Swearingen<br>Manager, Regulatory Affairs |
|----------|------------------------------------------------------------------------------------------------------|
| Address: | Emergo Global Consulting, LLC 2500 Bee<br>Cave Road<br>Building 1, Suite 300<br>Austin, TX 78746 USA |
| Phone: | (512) 327-9997 |
| Fax: | (512) 327-9998 |
| Email: | lst.aus.projectmanagement@ul.com |
#### 3. Date prepared: September 23, 2019
#### 4. Device Information
| Device Name: | SepaSperm Washing Solution, SepaSperm Solution | |
|--------------------|------------------------------------------------|--|
| Common Name: | Sperm processing media | |
| Regulation Number: | 21 CFR 884.6180 | |
| Regulation Name: | Reproductive media and supplements | |
| Regulatory Class: | Class II | |
| Product Code: | MQL (media, reproductive) | |
### 5. Predicate Device Information
| Device Name: | Sydney IVF Sperm Medium, Sydney IVF Sperm Gradient Kit, Sydney IVF Spermient |
|-------------------|------------------------------------------------------------------------------|
| 510(k) Number: | K152782 |
| Manufacturer: | William A. Cook Australia Pty Ltd. |
| Regulatory Class: | Class II |
| Product Code: | MQL (media, reproductive) |
The predicate device has not been subject to a design-related recall.
#### 6. Device Description
SepaSperm is used for preparation and washing of sperm and for separation of motile sperm from semen in assisted reproductive techniques.
The device includes two types of solutions used for density-gradient centrifugation:
- . SepaSperm Solution for sperm preparation and separation from semen, and
- . SepaSperm Washing Solution for sperm washing and preparation
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Both solutions are provided in two sizes (100mL and 50mL bottles). This product is single-use only and includes no accessories. The provided sterile-filtered into a container that is sterilized by gamma irradiation.
SepaSperm Solution is offered in four different densities, determined by the amount of silica present:
- SepaSperm Solution 100% -
- -Lower laver solution 80%
- Middle layer solution 60% -
- -Upper layer solution 40%
SepaSperm Solution is composed of silica particles diluted with modified human tubal fluid (m-HTF) medium, with dextran and polyvinylpyrrolidone added. The m-HTF medium is a HEPES-buffered solution which is suitable for use in ambient conditions. All SepaSperm Solutions are provided with and without gentamicin. SepaSperm Solution has a shelf-life of six or 12 months for media without or with gentamicin, respectively.
The SepaSperm Washing Solution consists of m-HTF medium supplemented with dextran and polyvinylpyrrolidone. It contains no silica. SepaSperm Washing Solution is used to wash the prepared sperm and suspend the final pellet. SepaSperm Washing Solutions are provided with and without gentamicin. SepaSperm Washing Solution has a shelf-life of six or 12 months for media without or with gentamicin, respectively.
# 7. Indications for Use
SepaSperm Washing Solution is used for preparation and washing of sperm for use in assisted reproduction
procedures. SepaSperm Washing Solution is not intrauterine insemination procedures.
SepaSperm Solution is used for separation of motile sperm from seminal fluid for use in assisted reproduction
procedures.
# 8. Comparison of Intended Use and Technological Characteristics with the Predicate Device
The table below lists the comparison of the indications for use and technological characteristics of the subject and predicate device.
| Manufacturer | Kitazato Corporation | William A. Cook Australia Pty Ltd. |
|---------------|------------------------------------------------------|----------------------------------------------------------------------------------------|
| Trade Name | SepaSperm Solution and<br>SepaSperm Washing Solution | Sydney IVF Spermient, Sydney IVF<br>Sperm Gradient Kit, and Sydney IVF<br>Sperm Medium |
| 510(k) Number | K190199 | K152782 |
### Table 1: Comparison of Characteristics
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| Indications for Use | SepaSperm Washing Solution is<br>used for preparation and washing<br>of sperm for use in assisted<br>reproduction procedures.<br>SepaSperm Washing Solution is<br>not intended for use in<br>intrauterine insemination<br>procedures.<br><br>SepaSperm Solution is used for<br>separation of motile<br>sperm from seminal fluid for use<br>in assisted reproduction<br>procedures. | Sydney IVF Sperm Gradient Kit and<br>Sydney IVF Spermient are intended for<br>use during in vitro fertilization<br>procedures to separate motile sperm from<br>seminal plasma.<br><br>Sydney IVF Sperm Medium is intended<br>for use during in vitro fertilization<br>procedures to process sperm. |
|-------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Materials of<br>Sperm<br>Separation<br>Solution | Silica, HEPES buffered salt<br>solution, D-glucose, water,<br>dextran, polyvinylpyrrolidone;<br>includes options with and<br>without gentamicin. | Not known |
| Materials of<br>Sperm<br>Washing<br>Component | Same as those of the SepaSperm<br>Solution (above), except that it<br>does not contain silica. | Not known |
| Volume | 50mL, 100mL | Sydney IVF Sperm Medium: 20 mL, 50<br>mL, and 100 mL<br><br>Sydney IVF Sperm Gradient Kit: 20 mL<br>and 50 mL<br><br>Sydney IVF Spermient: 200 mL and 100<br>mL |
| Solution<br>density (%<br>silica) | SepaSperm Solution: 40%,<br>60%, 80%, 100% | Sperm Gradient Kit: 40% and 80%;<br>Sydney IVF Spermient: 100% |
| Osmolality | 270-300 mOsm/kg | 285-295 mOsm/kg |
| pH | 7.2 - 7.6 | Sydney IVF Sperm Medium: 7.5-7.8<br><br>Sydney IVF Sperm Gradient Kit /Sydney<br>IVF Spermient: 7.3-7.5 |
| Sperm<br>Survival<br>Assay<br>(HSSA) | ≥80% of control motility at 24h | Performed, specification not known |
| Endotoxin | ≤0.25 EU/mL | <0.4 EU/mL |
| Sterility | Sterile filtration | Sterile filtration |
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| Storage<br>temperature | 2 - 8°C | 2 - 8°C |
|------------------------|------------------------------------------------------------|----------|
| Shelf Life | 6 months (without gentamicin);<br>1 year (with gentamicin) | 20 weeks |
The subject and predicate device have similar indications for use and have the same intended use (preparation, separation, and washing of sperm for use in assisted reproduction procedures). The subject and predicate device have similar technological characteristics as shown in the table above (e.g., design, gradient concentrations, osmolality, pH, sterilization method, etc.). The different technological characteristics of the subject device (e.g., formulation, shelf-life, endotoxin specifications, etc.) do not raise different types of safety and effectiveness questions.
# 9. Summary of Non-Clinical Performance Testing
The following studies have been performed to support substantial equivalence to the predicate devices. Results confirm that the design inputs and performance specifications for the device are met.
- Shelf Life Performance Testing (Time 0 and end of shelf-life):
- o Appearance
- Specific gravity: 1.0600-1.1200 о
- pH, per USP <791>: 7.2 7.6 o
- Osmolality, per USP <785>: 270-300 mOsm/Kg o
- Endotoxin, per USP <85>: < 0.25 EU/mL o
- HSSA: ≥80% of control motility at 24h o
- Sterility, per USP <71>: No microbial growth o
- Sterile filtration and Aseptic fill validation, per ISO 13408-1:2008(R2013) and ISO 13408-● 2:2003(R)2013)
- Transportation testing per ASTM D4169-16
- Bottle seal strength testing and containers performance testing per <USP 671> ●
- Sperm assessment for motility, morphology, viability, purity, and integrity before and after ● separation procedures to assess the effectiveness of the device when used in the three separation modes stated in device labeling.
### 10. Conclusion
The results of the performance testing described above demonstrate that the SepaSperm Washing Solution and SepaSperm Solution are as safe and effective as the predicate device and supports a determination of substantial equivalence.
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.